Home / 188,510.20-282,668.10-70,120.60

Finding the Fourth Proportional to 188,510.20, 282,668.10 and 70,120.60

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Solution

The fourth proportional to 188,510.20, 282,668.10 and 70,120.60 is: 105,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,510.20 : 282,668.10 = 70,120.60 : x
  2. Step 2: Convert to fraction form
    188,510.20/282,668.10 = 70,120.60/x
  3. Step 3: Cross multiply
    188,510.20x = 282,668.10 × 70,120.60
  4. Step 4: Simplify right side
    188,510.20x = 19,820,856,772.86
  5. Step 5: Solve for x
    x = 19,820,856,772.86/188,510.20
  6. Step 6: Final answer
    x = 105,144.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.